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Finding the Fourth Proportional to 6,680.55, 9,218.99 and 3,696.32

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Solution

The fourth proportional to 6,680.55, 9,218.99 and 3,696.32 is: 5,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.55 : 9,218.99 = 3,696.32 : x
  2. Step 2: Convert to fraction form
    6,680.55/9,218.99 = 3,696.32/x
  3. Step 3: Cross multiply
    6,680.55x = 9,218.99 × 3,696.32
  4. Step 4: Simplify right side
    6,680.55x = 34,076,272.54
  5. Step 5: Solve for x
    x = 34,076,272.54/6,680.55
  6. Step 6: Final answer
    x = 5,100.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.